JP2011069192A - Floating body device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floating body device which surely raises and lowers a floating body such as a log boom while following the variations of the water level, and safely and easily raises the floating body above the water level. <P>SOLUTION: A guide ring 23 is provided on the back 2b of the log boom 2, and a guide wire 3 for vertically guiding the guide ring 23 is provided on an intake pillar P. The leading end of a wire 422 of a winch 42 is attached to the log boom 2, a movable pulley 44 having a weight required to stretch the wire 422 is provided on the wire 422 between a winch body 421 for winding and unwinding the wire 422 and a fixed pulley 43 so as to be vertically movable, and an eye nut 45 is provided to fix the position of the moving pulley 44. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a floating body such as a net or an oil fence disposed in a floating state such as a river, and more particularly to a floating body device that moves up and down following a change in water level.

  For example, in order to prevent driftwood, dust, etc. from accumulating on a water intake screen provided in a river or the like, a net is provided. This net is located in front of the intake screen (upstream) in a state of floating in the water, and drifting of driftwood etc. is stopped by this net, so that driftwood etc. is on the intake screen side (downstream) It prevents it from flowing in. In such a net field, a floating body device (net field device) is known which moves up and down following fluctuations in the water level and can easily remove driftwood and dust attached to the net field (for example, net field device). , See Patent Document 1).

  In this floating device, both ends of the net are stretched between a pair of support columns so that the net can be moved up and down, and a pulley is attached to one end of the net. A winch side wire (rope) is hung on the pulley, and one end portion side of the winch side wire can be wound up and down by a winch provided above the support column. Further, a ring-shaped portion is provided at the other end portion of the winch-side wire, and a balancer is provided that can always pull upward a first hook that can be attached to and detached from the ring-shaped portion via the balancer-side wire. And when a water level fluctuates, a netting field follows a water level by raising / lowering along a support | pillar. At this time, since the other end portion side of the winch side wire is pulled by the balancer, the winch side wire does not sag, and malfunction during winding of the winch side wire is prevented. Further, when removing driftwood or dust attached to the net, the ring-like portion of the winch-side wire is removed from the first hook and locked to the second hook attached to the winch-side gantry. In this state, when the winch-side wire is wound up by the winch, one end of the net is raised along the support column and separated from the water surface.

JP 2004-100169 A

  By the way, in the floating body apparatus as described in the above-mentioned patent document 1, since both ends of the net are stretched between the pair of columns, the columns and the net are arranged in a straight line. It will be in a state facing the upstream side. For this reason, driftwood, dust, etc. from the upstream side enter between the support column and the end of the net, and further clog up, making it impossible for the net to move up and down, that is, the net cannot follow the water level. There is a case. Further, when removing driftwood or dust attached to the net (when raising the net above the water surface), the ring-shaped portion of the winch-side wire must be changed from the first hook to the second hook. And since such a change work is on the water and a high place, it is dangerous and requires a lot of labor and time. Furthermore, when removing driftwood or dust attached to the net, the balancer side wire and the first hook are unused (floating), so the balancer side wire and the first hook are connected to the winch side wire, etc. There is a risk of entanglement and hindering the rise of the net.

  Therefore, an object of the present invention is to provide a floating body device that can raise the floating body above the water surface safely and easily, and that the floating body can ascend and descend reliably following the fluctuation of the water level.

In order to achieve the above object, the invention described in claim 1 is a floating device including a floating body such as a net or an oil fence disposed in a floating state such as a river, the position of which is A wire of a winch is hung on a fixed fixed pulley, and a free end of the wire is attached to the floating body, and the wire between the winch body and the fixed pulley, which winds and unwinds the wire, A moving pulley having a weight required for tensioning the wire is provided so as to be movable in the vertical direction, and fixing means for fixing the position of the moving pulley is provided.
(Function)
For example, when the level of running water rises, the floating body also rises, the length of the wire between the winch body and the fixed pulley increases, the moving pulley moves downward by its own weight, and the wire is stretched by the weight of the moving pulley. It is done. On the other hand, when the water level falls, the floating body also descends, the length of the wire between the winch body and the fixed pulley is shortened, the moving pulley moves upward by the movement of the wire, and the wire is stretched by the weight of the moving pulley. It is done. Further, by fixing the position of the moving pulley by the fixing means and operating the winch body in the winding direction, the wire is wound up via the moving pulley and the fixed pulley, and the floating body rises.

The invention according to claim 2 is the floating body device according to claim 1, wherein the front surface of the floating body is positioned on the upstream side of the flowing water, and the back surface of the floating body facing the front surface of the floating body is the Located on the downstream side of running water, a guided portion is provided on the back of the floating body, a guide member for guiding the guided portion in the vertical direction is provided, and the floating body can be moved up and down along the guide member The guided portion is supported by the guide member.
(Function)
When the water level of the flowing water fluctuates, the floating body moves up and down along the guide member while the guided portion is supported and guided by the guide member.

According to a third aspect of the present invention, in the floating body device according to the second aspect, the guided portion is formed in a ring shape, the guide member is configured by a wire extending in the vertical direction, and the guided portion includes the The guided portion is supported by the guide member in a state in which the wire of the guide member is inserted.
(Function)
When the water level of the flowing water fluctuates, the floating body moves up and down along the wire of the guide member while the ring-shaped guided portion is guided in the vertical direction by the wire of the guide member.

  According to the first aspect of the present invention, the floating body can be raised above the water surface simply by fixing the movable pulley by the fixing means and operating the winch body. That is, there is no need to change hooks on the water and at high places. For this reason, a floating body can be raised from the water surface safely and easily. In addition, regardless of the fluctuation of the water level, the wire is always stretched by the weight of the moving pulley, and the wire is prevented from sagging and entangled with a floating body or a fixed pulley.

  According to the second aspect of the present invention, the guided portion and the guide member are provided on the back side of the floating body (downstream side of running water), and driftwood and dust from the upstream side are retained on the front surface of the floating body. Driftwood, dust, etc. will not enter between the guided portion and the guide member and become clogged. For this reason, the floating body can ascend and descend reliably following the fluctuation of the water level.

  According to the third aspect of the present invention, since the guided portion is guided and supported by the guide member in a state where the guide member wire is inserted into the ring-shaped guided portion, the guided portion and the wire By optimizing the gap, the floating freedom of the floating body increases. For this reason, when driftwood etc. adhere to a floating body, the stress concerning a floating body and a guide member can be relieved. Moreover, since the guided portion is ring-shaped and the guide member is made of a wire, the configuration of the apparatus can be simplified and the manufacturing cost can be reduced.

The schematic block diagram which shows the network apparatus concerning embodiment of this invention. The front view which shows the arrangement | positioning state of the mesh field of the mesh field apparatus concerning embodiment of this invention. The front view (a) and the left view (b) of the net of the net device concerning an embodiment of the present invention. The block diagram of the raising / lowering apparatus of the netting apparatus concerning embodiment of this invention. The figure which shows the arrangement | positioning state of the moving pulley and eyenut of the netting apparatus concerning embodiment of this invention. The figure which shows operation | movement when the water level of a river rises in the netting apparatus concerning embodiment of this invention. The figure which shows operation | movement when the water level of a river falls in the netting apparatus concerning embodiment of this invention. The figure which shows the state which is raising / lowering a net field from the water surface in the net field apparatus concerning embodiment of this invention.

  Hereinafter, the present invention will be described based on the illustrated embodiments.

  FIG. 1 is a schematic configuration diagram showing a network device 1 (floating body device) according to an embodiment of the present invention. This netting device 1 includes a netting field 2 (floating body) disposed in a floating state on a river R (running water), a guide wire 3 (guide member, wire), and an elevating device 4.

  As shown in FIG. 2, the net 2 is disposed in front (upstream side) of the intake screen S disposed between the two intake pillars P. As shown in FIG. 3, a floating bag 22 is attached to both ends of a ladder-like frame body 21, and the front surface 2a of the network field 2 is located on the upstream side of the river R, and is opposite to the front surface 2a. The rear surface 2b is disposed on the downstream side of the river R (the intake screen S side). Then, the flow of driftwood, dust and the like flowing from the upstream side of the river R is stopped by the front surface 2a of the net 2 and the driftwood, dust and the like are prevented from flowing into the intake screen S side. A ring-shaped guide ring 23 (guided portion) is attached to the center of the back surface 2 b of both ends of the net 2, and the guide wire 3 is inserted into each guide ring 23. That is, the guide wire 3 is disposed so as to extend in the vertical direction along the intake pillar P, and the upper and lower ends are fixed to the intake pillar P via the anchor hooks 31. Such a guide wire 3 is inserted into the guide ring 23 so that the guide ring 23 is supported and guided in the vertical direction. Further, in this state, the guide wire 3 is located on the back surface 2b side of the network field 2 (hidden by the front surface 2a of the network field 2). The net field 2 can be moved up and down along the guide wire 3 by the guide wire 3 and the guide ring 23, or the net field 2 is prevented from flowing.

  As shown in FIG. 4, one lifting device 4 is disposed at the top P <b> 1 of each intake pillar P, and includes a frame 41, a winch 42, a fixed pulley 43, a movable pulley 44, and an eye nut 45 (fixing means). ). The frame 41 includes a first frame pillar 411 and a second frame pillar 412 that are vertically installed on the top P1 of the water intake pillar P, and a horizontal arm 413 that is installed on the top of the frame pillars 411 and 412. . As shown in FIG. 5, the second frame pillar 412 is composed of two pillar members 412a and 412b. The tip of the horizontal arm 413 faces the river R side, and a pulley mounting hook 413a is attached. Further, a winch cover 413b is provided between the first frame pillar 411 and the second frame pillar 412 of the horizontal arm 413, and the winch body 421 of the winch 42 is attached in the winch cover 413b.

  The wire 422 of the winch 42 is hooked on the movable pulley 44 and the fixed pulley 43, and the tip (free end) thereof is attached to the end of the net 2. That is, the fixed pulley 43 is attached to the pulley attachment hook 413a, and the position thereof is fixed. The movable pulley 44 includes a pulley body 441 and a hook 442, is disposed between the pillar materials 412 a and 412 b of the second frame pillar 412, and is in a state of being suspended in the air by the wire 422. Thereby, as will be described later, the movable pulley 44 can move in the vertical direction as the net 2 is moved up and down, or as the wire 422 is wound up and down. Furthermore, the weight of the movable pulley 44 is set to a weight (load) required to make the wire 422 always stretched. The tip of the wire 422 is attached to the net 2 via the movable pulley 44 and the fixed pulley 43.

  The eye nut 45 includes a base portion 451 and a ring portion 452, and the base portion 451 is fixed to the water intake pillar top portion P1 between the pillar members 412a and 412b. Then, the movable pulley 44 is positioned on the top P1 side of the water outlet pillar P, and the hook 442 is hooked on the ring portion 452 of the eye nut 45, whereby the position of the movable pulley 44 is fixed.

  Next, the operation of the network device 1 having such a configuration will be described.

  For example, when the water level of the river R rises in a state where the net 2 is floating in the river R as described above, the net 2 is also raised as shown in FIG. 6, and the wire 422 on the net 2 is also raised. . Thereby, the length of the wire 422 between the winch main body 421 and the fixed pulley 43 becomes long, the moving pulley 44 moves downward by its own weight, and the wire 422 is stretched by the weight of the moving pulley 44. At this time, the net 2 rises along the guide wire 3 while the guide ring 23 of the net 2 is supported and guided by the guide wire 3.

  On the other hand, when the water level of the river R falls, the net 2 is also lowered as shown in FIG. 7, and the wire 422 on the net 2 side is also lowered. As a result, the length of the wire 422 between the winch body 421 and the fixed pulley 43 is shortened, and the moving pulley 44 is moved upward (pushed up) by the movement of the wire 422, and the wire 422 is driven by the weight of the moving pulley 44. Is stretched. At this time, the mesh field 2 descends along the guide wire 3 while the guide ring 23 of the mesh field 2 is supported and guided by the guide wire 3.

  In order to raise the net 2 above the water surface in order to remove driftwood or dust attached to the net 2, the following may be performed. That is, the winch body 421 is actuated in the lowering direction to move (lower) the movable pulley 44 to the eyenut 45, and the movable pulley 44 is fixed by applying the hook 442 to the ring portion 452 as shown in FIG. By this fixing, the movable pulley 44 functions as a fixed pulley, and the winch body 421 may be operated in the winding direction in this state. Thereby, the wire 422 is wound up via the movable pulley 44 and the fixed pulley 43, and the net 2 is raised above the water surface. Further, in order to return the net 2 to the river R after completion of the work of removing driftwood, the winch body 421 may be operated in the lowering direction. Thereby, the wire 422 is wound down via the moving pulley 44 and the fixed pulley 43, and the net 2 is located on the water surface.

  As described above, according to the network device 1, the guide wire 3 and the guide ring 23 are located on the back surface 2 b side of the network field 2, and driftwood and dust from the upstream side are fastened on the front surface 2 a of the network field 2. Therefore, driftwood, dust, and the like do not enter between the guide wire 3 and the guide ring 23 and become clogged. For this reason, the net 2 can move up and down reliably following changes in the water level of the river R. Moreover, by setting the movable distance of the movable pulley 44 to 2 m, for example, it is possible to follow a maximum water level fluctuation of 4 m, and to suppress the height of the netting device 1 (elevating device 4) to a large level. Can follow.

  In addition, since the guide ring 23 is guided and supported by the guide wire 3 in a state where the guide wire 3 is inserted into the guide ring 23, the gap between the guide wire 3 and the guide ring 23 is optimized, and the network 2's degree of freedom of floating increases. For this reason, when the driftwood of the mesh field 2 adheres, the stress concerning the mesh field 2 and the guide wire 3 can be relieved. Moreover, since it is comprised by the ring-shaped guide ring 23 and the guide wire 3 which is a wire, the structure of the network apparatus 1 can be simplified and manufacturing cost can also be reduced.

  Furthermore, the net 2 can be raised and lowered from the water surface simply by fixing the movable pulley 44 with the eye nut 45 and operating the winch body 421. That is, there is no need to change hooks on the water and at high places. For this reason, the net 2 can be raised and lowered from the water surface safely and easily. Regardless of the fluctuation of the water level, the wire 422 is always stretched due to the weight of the moving pulley 44, and the wire 422 is prevented from sagging to prevent the wire 422 from being entangled with the net 2 or the fixed pulley 43. Furthermore, since the lifting device 4 is disposed at the top P1 of each intake pillar P, and the wires 422 are attached to both ends of the mesh field 2, the entire mesh field 2 moves up and down horizontally. For this reason, it is possible to easily remove all driftwood, dust, and the like attached to the net 2 as compared to a one-side-up state where only one end of the net 2 is raised.

  Although the embodiment of the present invention has been described above, the specific configuration is not limited to the present embodiment, and design changes and the like within a scope not departing from the gist of the present invention are included in the present invention. It is. For example, in this embodiment, the eye nut 45 is provided at the top P1 of the water outlet pillar P and the movable pulley 44 is always fixed at the top P1, but it may be fixed at an arbitrary position. That is, for example, a plurality of insertion holes are provided along the vertical direction in the pillar members 412a and 412b of the second frame pillar 412, and a stop bar is inserted into an arbitrary insertion hole. Then, the movable pulley 44 may be fixed by hooking the hook 442 to the stop bar. Thereby, it is not necessary to move the moving pulley 44 to the eye nut 45 every time the net 2 is raised above the water surface.

  By the way, in this embodiment, the net 2 is a floating body, but it is needless to say that other floating bodies such as an oil fence and a reservoir thermometer may be used.

1 Network equipment (floating body equipment)
2 Aiba (floating body)
2a Front 2b Back 23 Guide ring (guided part)
3 Guide wire (guide member, wire)
4 Lifting Device 41 Frame 42 Winch 421 Winch Main Body 422 Wire 43 Fixed Pulley 44 Moving Pulley 441 Pulley Main Body 442 Hook 45 Eye Nut (Fixing Means)
451 Base 452 Ring part P Water intake pillar S Water intake screen R River (running water)

Claims (3)

A floating body device equipped with floating bodies such as nets and oil fences that are placed in floating conditions such as rivers,
A winch wire is hung on a fixed pulley with a fixed position, and a free end of the wire is attached to the floating body, and the wire between the winch body and the fixed pulley that winds and unwinds the wire. A movable pulley having a weight required to stretch the wire is provided so as to be movable in the vertical direction, and a fixing means for fixing the position of the movable pulley is provided.
A floating body device characterized by that. The front surface of the floating body is positioned on the upstream side of the flowing water, the back surface of the floating body facing the front surface of the floating body is positioned on the downstream side of the flowing water, and a guided portion is provided on the back surface of the floating body. A guide member for guiding the guided portion in the vertical direction is provided, and the guided portion is supported by the guide member so that the floating body can be moved up and down along the guide member.
The floating body device according to claim 1. The guided portion is formed in a ring shape, the guide member is composed of a wire extending in the vertical direction, and the guided portion is supported by the guide member in a state where the wire of the guide member is inserted into the guided portion. Being
The floating body device according to claim 2.

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